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OPB472T11
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OPB472T11

Product Overview

Category

The OPB472T11 belongs to the category of optical sensors.

Use

It is used for detecting the presence or absence of an object by utilizing an infrared light-emitting diode and a phototransistor.

Characteristics

  • Utilizes infrared light for detection
  • Compact size
  • High sensitivity
  • Reliable performance

Package

The OPB472T11 is typically available in a small, compact package suitable for integration into various electronic devices.

Essence

The essence of the OPB472T11 lies in its ability to accurately detect the presence or absence of objects in a wide range of applications.

Packaging/Quantity

The sensor is usually packaged individually and is available in varying quantities based on the manufacturer's specifications.

Specifications

  • Operating Wavelength: 950 nm
  • Supply Voltage: 4.5 V to 5.5 V
  • Output Type: Phototransistor
  • Operating Temperature Range: -40°C to 85°C
  • Response Time: 15 µs

Detailed Pin Configuration

The OPB472T11 typically has three pins: 1. Anode (+) 2. Cathode (-) 3. Collector (C)

Functional Features

  • Infrared LED and phototransistor in a single package
  • High immunity to ambient light
  • Fast response time
  • Low power consumption

Advantages

  • Accurate and reliable object detection
  • Compact design for easy integration
  • Wide operating temperature range

Disadvantages

  • Limited range compared to some other types of sensors
  • Susceptible to interference from certain types of ambient light sources

Working Principles

The OPB472T11 operates on the principle of detecting the interruption of the infrared light beam emitted by the internal LED. When an object obstructs the path between the LED and the phototransistor, the sensor detects the change in light intensity, signaling the presence of the object.

Detailed Application Field Plans

The OPB472T11 is commonly used in various applications such as: - Object detection in automated machinery - Paper detection in printers and copiers - Proximity sensing in consumer electronics - Robotics for obstacle detection

Detailed and Complete Alternative Models

Some alternative models to the OPB472T11 include: - TCRT5000: A similar reflective optical sensor with infrared emitter and phototransistor - GP2Y0A21YK0F: Infrared distance measuring sensor with analog output - TSSP4038: Infrared receiver module for remote control systems

In conclusion, the OPB472T11 is a versatile optical sensor with a compact design and reliable performance, making it suitable for a wide range of object detection applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av OPB472T11 i tekniska lösningar

  1. What is OPB472T11?

    • OPB472T11 is a reflective object sensor that consists of an infrared LED and a phototransistor, designed for use in applications requiring non-contact sensing.

  2. What are the typical applications of OPB472T11?

    • OPB472T11 is commonly used in applications such as paper detection in printers, edge detection in robotics, and object detection in industrial automation.

  3. What is the operating voltage range of OPB472T11?

    • The operating voltage range of OPB472T11 is typically between 4.5V and 5.5V.

  4. How does OPB472T11 detect objects?

    • OPB472T11 detects objects by emitting infrared light from the LED and measuring the amount of light reflected back to the phototransistor. When an object is present, it interrupts the light beam, causing a change in the phototransistor's output.

  5. What is the sensing distance of OPB472T11?

    • The sensing distance of OPB472T11 can vary based on the specific application and environmental conditions, but it is typically in the range of a few millimeters to a few centimeters.

  6. Can OPB472T11 be used in harsh environments?

    • OPB472T11 is not designed for harsh environments and may require additional protection or housing if used in dusty, humid, or corrosive environments.

  7. What is the output type of OPB472T11?

    • OPB472T11 provides a digital output, typically in the form of an open-collector NPN transistor.

  8. Does OPB472T11 require any external components for operation?

    • OPB472T11 may require external resistors and capacitors for proper operation, depending on the specific application and circuit requirements.

  9. Is OPB472T11 sensitive to ambient light?

    • OPB472T11 is designed to minimize the effects of ambient light interference, but excessive ambient light may still affect its performance, especially in outdoor or brightly lit environments.

  10. Can OPB472T11 be used for speed sensing applications?

    • OPB472T11 can be used for speed sensing in certain applications, such as detecting the rotation of a shaft with reflective markings, but it may not be suitable for high-speed or precise speed measurement applications.